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Hobbies & crafts

How to draw a coastal rock arch from a photo using pencil and paper

Block in the big shapes, add horizon and sea, shade the arch for depth, and finish with texture lines and foam highlights. Sketch sequences show each layer so beginners can follow along in minutes.

12 clear steps·Illustrated guide
A pencil sketch of a coastal rock arch on paper, transitioning from light outline to fully shaded textures.
  1. 01

    1. Set up your tools and reference photo

    Place your photo where you can see it clearly without moving your head much. Set out a sheet of smooth sketch paper, a hard pencil for light lines (H or HB), a softer pencil for shading (2B–4B), a kneaded eraser, and a blending stump. Sharpen pencils so you can draw crisp edges on the arch.

    Drawing tools laid out beside a coastal arch photo, ready for sketching.
  2. 02

    2. Lightly frame your drawing area

    With your HB pencil, draw a faint rectangle to mark the area you’ll use. This helps keep the composition centered and leaves clean margins. Work lightly so these guide lines can disappear under shading.

    A light pencil rectangle centered on a blank sheet of paper.
  3. 03

    3. Place the horizon line

    Match the photo by eye and draw a very light, straight horizon across the page inside your frame. Keep it level; a ruler helps. Stop the line where the rock arch will overlap so you don’t darken through the shape.

    A faint horizontal horizon line with breaks left for where the arch will be drawn.
  4. 04

    4. Block in the arch’s outer silhouette

    Squint at your photo and sketch the big outer shape of the arch using simple angled lines before curving them. Capture the overall height and width first, then refine the contour. Keep lines light and adjustable.

    Light, simple outline of a coastal rock arch’s outer edges over a blank horizon.
  5. 05

    5. Carve the opening and thickness of the arch

    Draw the inner curve of the arch’s opening, checking the gap size against your photo. Indicate the rock’s thickness along the rim so it feels solid, not paper-thin. Keep these lines just dark enough to see clearly.

    An outlined rock arch with its inner opening and rim thickness drawn.
  6. 06

    6. Map the shore and water shapes

    Lightly sketch where the arch meets land or water. Add the main shoreline angles and any nearby rock masses. Suggest broad, horizontal water bands that follow the horizon. Leave white gaps where bright foam will be.

    The arch outline now includes shoreline and broad horizontal water shapes.
  7. 07

    7. Block in the darkest shadow masses

    Switch to a softer pencil (2B–4B). Fill the deepest shadows inside the arch and under overhangs as simple, connected shapes. Keep edges clean where the shadow meets bright sky or water to create strong contrast.

    Dark shadow areas added inside the arch opening and under rock overhangs.
  8. 08

    8. Establish the sea tone and depth

    Lay a light, even tone across the sea using horizontal strokes. Darken slightly under the arch opening to suggest reflected shadow. Keep the horizon crisp and leave small, unshaded streaks to reserve foam highlights.

    Light horizontal shading for the sea with brighter foam streaks and a darker band under the arch.
  9. 09

    9. Model the rock with midtones

    Add midtone shading to the arch’s sunlit planes, staying lighter than your darkest shadows. Blend lightly with a stump to unify tones, then restate the rim edges so the arch clearly overlaps the sky and sea.

    Soft midtone shading added to the rock arch with clear edges against the background.
  10. 10

    10. Add rock texture and fissures

    Suggest texture with short, broken strokes that follow the arch’s curves and angles. Cluster lines more densely in shadow and thin them out in light. Vary pressure and direction to hint at cracks without over-detailing.

    Short, varied pencil strokes create natural rock texture on the arch.
  11. 11

    11. Lift foam highlights and sparkle

    Pinch a kneaded eraser to a point and tap along wave edges and around the base of the arch to pull out tiny whites. Add a few small, scattered bright spots on the water, getting smaller as they recede into the distance.

    Bright foam and water highlights lifted with an eraser around the arch and across the sea.
  12. 12

    12. Refine contrasts and clean up

    Deepen a few key darks inside the arch and at contact points where rock meets water. Lightly soften distant details so the arch stays the focus. Erase stray construction lines and add your initials discreetly.

    A finished pencil drawing of a coastal rock arch with clear depth, texture, and clean edges.

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